Trending December 2023 # Vodafone Sure Signal Femtocell Hack Allows Call Recording, Spoofing # Suggested January 2024 # Top 16 Popular

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Vodafone Sure Signal femtocell hack allows call recording, spoofing [Update: Fixed]

“The Femto cell contains a Mini-RNC/Node-B which is not a real RNC nor a Node-B. It’s something inbetween. The mini-RNC can request real encryption keys and authentication vectors for any vodafone UK customer from the vodafone core network (like a real RNC). The vodafone core network still authenticates every single phone (like a Node-B)”

A similar hack allows outgoing calls and SMS messages to be sent via another Vodafone customer’s phone, if registered to the compromised Sure Signal, though incoming traffic can only be collected if the account is registered through Vodafone to the femtocell itself. Other instructions suggest how the Sure Signal could be transported abroad and used to create a personal network wherever there’s a broadband connection, rather than solely in the UK as Vodafone mandates.

Update: Vodafone UK has given us the following statement:

“Overnight on July 12, a claim appeared that hackers had found security loopholes in Vodafone Sure Signal which could compromise the security of Vodafone’s network. This is untrue: the Vodafone network has not been compromised.

The claims regarding Vodafone Sure Signal, which is a signal booster used indoors, relate to a vulnerability that was detected at the start of 2010. A security patch was issued a few weeks later automatically to all Sure Signal boxes.

As a result, Vodafone Sure Signal customers do not need to take any action to secure their device.

We monitor the security of all of our products and services on an ongoing basis and will continue to do so.”

Update 2: [07/15/11] Vodafone has taken extra steps beyond its firmware update of last year to ensure no call monitoring/spoofing is possible from hacked Sure Signal boxes. The carrier is now blocking network access to any units which do not upgrade to the most recent firmware. That means, if you have an old Sure Signal, as soon as you plug it in it should automatically upgrade and then give you network access; if you’ve hacked your femtocell so as not to update, the unit simply won’t work. Vodafone echoes what we pointed out in our original report, which is that the potential for harm was always – given the low range of the Sure Signal – relatively limited:

“We have identified just a handful of devices running software which pre-dates the patch we issued to fix this vulnerability (originally issued in February 2010).

These devices will no longer access our network unless they are carrying the most recent software update. Devices will automatically poll for this update upon being powered up.

The only time a customer could theoretically have been at risk was if they were registered on, and within 50 metres of, a box which the owner had tampered with. This would have required that person to dismantle the device and solder additional components onto it, as well as taking the conscious decision to prevent the device from receiving our automatic software updates.”

“The design of the Vodafone Sure Signal is based on and conforms with the industry 3GPP femtocell standards. Therefore, claims that it violates the security requirements for 3G/UMTS are completely untrue.

In addition to this, the device has been and continues to be rigorously tested by Vodafone, our partners and independent security experts. As a result of this, we can say with confidence that Vodafone Sure Signals currently in operation are not vulnerable to the reported exploits.”

[via cellular-news]

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Best Portable Audio Recording? Zoom H1 Review

Before actually owning the zoom h1, I did do my own research on the product. Everyone’s conclusion was that it felt like a cheap toy. However, I feel as though, while it is all plastic, it still feels sturdy.  I have dropped this mic before and it has yet to crack. (I hope it doesn’t of course!)  And upside to it being all plastic is that it is very light. The build itself is a very small mic intended for on the go usage. It might just be me, but there is something satisfying when you can buy an a product for use, and not have to worry about it getting scuffed up. Coming in an all plastic and cheap form actually makes me want to bring it around more. I toss it into my bag and go. And I think that’s a very important factor when considering this type of product to buy. Just don’t expect a tank when your buying this product. Keep in mind the satisfying buying price of it and you won’t have any complaints.

To be blunt the sound is fantastic.  With an onboard mic that you get with your typical DSLR, you’ll notice the sound levels are not equal. Every now and then I would record a conversation with two people, and while they are at the same exact distance from the camera, every now and then one voice would be extremely high while the other would be low.– Not with the zoom h1. If I aim the mic correctly, the audio is not only equal, but it is also accurate.Another problem that I had before using the Zoom h1 was the fact that my onboard mic picked up a certain humming noise in the background. The h1, as im sure many if not all external mics, fix this problem.  The Zoom h1 mic also removed the audio echo that I received with many other cameras. (Especially webcams)

I do not have a wind filter, as it does not come with one, but I have noticed, to no surprised, that in semi-windy condition, without a wind filter, it does pick up a lot of wind noise.  A LOT. Not a negative thing, that’s typical, but don’t be put off by it and buy a wind filter. (If you intend to work in windy conditions)

The Zoom H1 does cannot be directly connected into your camera. You must manually sync you audio. It could be a major pain, and it is something you definitely want to consider. I believe in the new Final Cut Pro X there is a way to automatically sync the audio, but even then, I would of course rather just have the audio recorded right into our DSLR. If this is a problem, you might want to consider the Zoom H1′s big brother: the Zoom H4n.

The zoom consumes only one AA battery, but I still wish it had a charging feature.  It also does have  tripod screw in so if you have an extra tripod you can mount it equally to your camera.

For a budget mic, I think it is a great product.  I do envy the Zoom H4n, but considering the price this product it is going for, I can’t complain much. It’s a mic, that I use to supplement everything, my DSLR, my webcam, and sometimes even my phone. The only downside I would have to say is, again, you have to manually sync the audio in post production. So do I recommend this mic? Yes, yes I do!

The Zoom H1, your portable audio recorder now the perfect supplement to any DSLR or video recording device. Small and affordable, but what does all of that sacrifice?

How To Make Sure Your Eclipse Glasses Actually Work

You’ve planned your road trip, downloaded your science apps, and bought yourself a pair of shiny new spectacles: you’re ready for the eclipse. But is your eyewear is up to the task?

With the Great American Eclipse approaching, demand for eclipse glasses—with special lenses designed to keep the sun from harming your peepers—is surging. And counterfeit glasses are everywhere. In fact, Amazon is so swamped by reports of possibly unsafe glasses that the company is allegedly sending out recalls and refunds for products that are certified as eclipse-safe.

How can glasses be counterfeit?

It’s supposed to be super simple to determine the effectiveness of eclipse lenses. The International Organization for Standardization (ISO) uses a standard called ISO 12312-2 to certify these products. To achieve ISO 12312-2 compliance, companies have to file paperwork proving that their lenses block a certain amount of UV light. If they meet that standard, then the business can label those glasses with the appropriate ISO certification number printed on their product.

This is because having appropriately darkened glasses is crucial to safe eclipse viewing. If you’re actually on the path of totality—where the sun will be totally blocked out by the moon for a minute or two—it’s safe to stare up at the phenomenon without glasses during that brief period of complete darkness. But during a partial eclipse (which will make up the bulk of the event no matter how good your viewing spot is) you must protect your eyes.

You probably realize that staring up at the sun can damage your retinas. During an eclipse, you run the risk of being surprised by the sun’s return. Imagine that the sun is hidden enough by the moon that you feel comfortable staring at it—you don’t reflexively squint. Now imagine staring just a few seconds too long, and suddenly getting hit with a bigger blast of UV radiation. It’s not a good time.

The ISO 12312-2 certification guarantees that your eyes will actually be protected as you gaze skyward. Unfortunately, there have been many reports of factories stamping the ISO label on glasses that haven’t actually been certified. Sure, some of these may be using the same lenses as certified products—with the rush to sell a brand new product, some companies surely skipped the hassle of certification even if their lenses would have passed—but is that a risk you’re willing to take? It shouldn’t be.

How can I know if my glasses are safe?

Now that spotting a label isn’t enough, things have gotten a little trickier. Luckily, the American Astronomical Society (AAS) has a running list of certified companies. They even list which brick-and-mortar retail stores are selling the right brands. In the totality-laden state of Oregon, for example, folks getting glasses from McDonald’s are all set. Also included are some of those random third party sellers on Amazon—the ones you buy stuff from without even realizing, most of the time—so you can vet more of your online purchases.

If your glasses are from a reputable source, all you have to do is actually wear them. Make sure they’re not scratched or torn—these aren’t the sunglasses you leave knocking around at the bottom of your tote bag, they need to provide full, unmarred coverage—and be sure not to use an unfiltered camera of any kind while you have them on, as the concentrated light may render them ineffective. According to the AAS, you don’t need to worry about limiting your time in the specs; some glasses will warn against more than three minutes of use, but ISO-certified glasses made after 2023 can be used indefinitely.

Here are a couple of highly-rated options that should arrive in time for your eclipse party.

My brand is supposed to be safe, but how do I know they’re for real? Can I test them?

According to the AAS, you can’t really check whether lenses are ISO-compliant without the proper equipment—so you use unapproved lenses at your own peril, no matter how carefully you test them at home.

But if you’re just looking to double check glasses that are meant to be safe, put them on and make sure you can’t see any light that’s not as bright as the sun. Your smartphone LED flashlight will do the trick. For starters, pop your glasses on and look around. Can you see anything? If so, they’re bogus.

If you’re still very much in the dark, move on to testing with an LED flashlight. I turned my phone’s flashlight on full blast and sheepishly angled it towards my (lens-protected) eyes. All I could see were a couple of dim little dots, even when I brought the light right up against my glasses. I was so impressed that I took the glasses off to compare just how bright the light was without a filter. Do not do this, as it negates the entire purpose of this article.

We can’t recommend that you use anything but certified glasses from a reputable seller. But if you can shine an LED in your face and barely see a single pinprick of dim light, your glasses are probable ready to handle an eclipse.

Now that I don’t trust any of my eclipse glasses, how can I still watch the darn thing?

It’s disconcerting to know that the market is flooded with dangerous fakes, so you might not feel safe even with glasses that you’re fairly certain are certified. If you’re not willing to put your vision on the line, consider using a projection method. The pinhole camera is a classic choice, and all you need to make one is a couple sheets of paper and a pin.

You may also be interested in:

What Are Call And Put Options?

Options are “derivative investments”, meaning the price movements of the investments are based on the price movements of another financial product. The financial product from which the derivative is obtained is called the “underlying.”

Call and Put Options

Options are contracts that provide the buyer the right to buy or sell an underlying asset, at a predetermined price and before a specific date.

A call option is bought by a trader if the investor expects the price of the underlying to rise within a certain time frame.

A put option is bought by a trader if he/she expects the price of the underlying to fall within a given time frame.

How Call Options Work

For American-style options, the call option buyers get the right to buy an underlying asset at a pre-decided price at any time before expiry.

In case of European-style options, the buyers may exercise the option— to buy the underlying—only on the expiration date. Options expirations may vary and can be either short-term or long-term.

Here, the strike price is that at which a put buyer can sell the underlying asset. For example, the investor who chooses to go for a stock put option with a strike price of $10 can use the option to sell that stock at $10.

The Buyer Gets 

The call buyer can buy a stock at the strike price before the expiration. To get the right, the call buyer needs to pay a premium. If the underlying’s price moves above the strike price, the option will be worth money. The buyer can sell the option for a profit or exercise the option, which means he would receive the shares from the person who wrote the option).

The Call Seller Gets

The call writer/seller which is usually a bank receives the premium. Writing call options is a way to generate income. However, the income from a call option is limited to the premium, but a call buyer has theoretically unlimited potential of earning profit.

Calculating the Call Option’s Cost

One stock call option contract usually contains 100 shares of the underlying stock where each stock’s call prices are basically quoted as per share rate. Therefore, to determine the price of a contract, the price of the option should be multiplied by 100.

Call options can be “in”, “at”, or “out of” the money −

In-the-money refers to the underlying asset price that is above the call strike price.

Out-of-the-money refers to the underlying price that is below the strike price.

At-the-money is when the underlying price and the strike price are the same.

How Put Options Work

For American-style options, a put options contract provides the buyer the right to sell an underlying asset at a predetermined price at any time up to the expiration date.

The purchasers of European-style options should exercise the option, that is sell the underlying only on the expiration date.

Here, the strike price is that at which a put buyer can sell the underlying asset. For example, the investor who chooses to go for a stock put option with a strike price of $10 can use the option to sell that stock at $10.

The Put Buyer Gets 

The put buyer gets the right to sell a stock at the strike price. For gaining that right, the put buyer needs to pay a premium. When the underlying’s price moves below the strike price, the option will be worth money. The buyer can also sell the options for a profit or exercise the option, that is sell the shares.

The Put Seller Gets 

The put seller, or writer, gets the premium from the sale. Writing put options is also a way to generate income. However, generating income from writing put options is limited to the premium, while a put buyer can continue to maximize their profit until the stock price goes to zero.

Calculating the Put Option’s Cost

Put contracts also represent 100 shares of the underlying stock. To find the price of the whole contract, one needs to multiply the underlying’s share price by 100.

Put options can be “in”, “at”, or “out of” the money, just like call options −

In-the-money refers to the fact that the underlying asset price is below the put strike price.

Out-of-the-money refers to the fact that the underlying price is above the strike price.

At-the-money implies that the underlying price and the strike price are the same.

8 Best Call Recorder Apps For Android

Joe Hindy / Android Authority

Call recording on Android is a finicky thing. It worked fine for many years. Google turned the feature off, then back on again, and finally off for good as of May 2023. Thanks to years of workarounds, regional restrictions, Google policy and API changes, and carrier restrictions, there is a lot of information out there, and a lot of it isn’t accurate anymore. It’s not anyone’s fault, but when you change these policies and how stuff works often enough, eventually, everyone’s tutorials don’t work anymore.

We rewrote this list from the top down in November 2023 after Google’s Accessibility ban. We can confirm that every app on the list below worked on both of our test devices, and we made over 140 phone calls in total to test apps for this. Here are the best call recorder apps for Android.

Some of these methods may not work on all phones in all regions. The list below was tested with a Galaxy S23 Ultra and a Pixel 6. Both are running Android 13. Testing was also done in the United States. Also, this list has a few apps from outside the Play Store. If you need help installing non-Google Play apps, we have a tutorial for installing third-party apps.

One final thing, no call recording apps work with Wi-Fi calling. You’ll need to disable it in order for any of these apps to work.

The best call recorder apps for Android

Call recording is one of the stickiest topics on mobile. It should be relatively easy, but it’s not. It worked well until Android 9 when Google turned it off for the first time. It stayed turned off until Android 11. Technically, the functionality is still there now with Android 13. Some OEMs, like Google and Samsung, package call recording in the native dialer app, but only in some regions.

In 2023, Google changed a Google Play policy that prevents apps from using the Accessibility permission for call recording. That’s how the developers enabled the feature. Since this was the easiest method, developers have scrambled for workarounds since the May 2023 ban.

Years of policy, API, and functionality changes have left users with a slew of old tutorials and workarounds that used to work but don’t anymore.

So, in short, four things prevent people from recording calls. The version of Android your phone runs can prevent it entirely. Secondly, the region you live in can cause features to be turned off. Google Play policies make it hard for developers to release products that actually work. Finally, the lack of root access limits a person’s ability to bypass the previous three issues.

These days, there seem to be three major workarounds. The first is downloading an app from outside the Play Store that still allows for Accessibility use. The second method uses a plug-in or secondary app that uses the Accessibility API while connecting to the original app to record calls, thus bypassing the Google Play ban. The third is root access. Rooting isn’t the most popular thing anymore, so we focus on the other two methods below.

ACR Phone + APH

Call Recorder by Lucky Mobile Apps


Cube ACR

Pixelify Magisk Manager module (root)

True Phone

Price: Free / $4.99-$9.99

Joe Hindy / Android Authority

True Phone is a reasonably decent option for call recording. It’s a dialer app, so you’ll be replacing the stock dialer app with this one. The UI is clean, if a little drab in some parts, and finding the options is simple enough. It also works well in terms of call recording. The app worked on both of our tester phones. However, it did have the worst call recording quality of any app on the list.

We left everything as it was for settings, and it seemed to work out well. It seems like it uses your phone’s microphone to record calls instead of recording natively. It’s not ideal, but it’s louder and less muffled than most other apps that do it this way. You do need a second app to listen to recorded calls, like an audio player or a file browser app. The developer says they’re adding a dedicated player actually to listen to your calls in a future update. It does work, but it’s not as good as others on the list.

Your stock phone dialer (regional restrictions apply)

Drupe (Google Play) — Drupe is a dialer app with a ton of functionality. There are options for call recording in the settings menu. However, I could not get it to record any actual phone calls. Thus, it has the feature, but it may or may not work for you. The only way to know is to try it and see yourself.

Showcaller (Google Play) — Showcaller is another dialer app that boasts call recording functionality. Like Drupe, it has a decent number of features. However, I was unable to record any calls with this app, despite there being an option for it.

Call recorders that record speakerphone — A good percentage of call recorder apps on Google Play record audio using the speakerphone. This results in muffled recordings from the other person’s end, but those can generally be boosted to acceptable levels in an audio editing app. It’s not ideal, but it does work.

State Of The Pay Per Call Industry

The pay per call industry is growing and making waves, but how is it impacting businesses using it?

I recently spoke with Daryl Cowell from Matomy at a recent affiliate marketing conference. We got to talking about how many companies are seeing great success with affiliates in the space.  Here is my interview with him about what’s going on in the pay per call industry.

What is the current state of pay-per-call marketing?

What are the next verticals to get into the game?

We expect to see increased appetite for pay-per-call campaigns in the following verticals: retail, travel, drug and alcohol rehabilitation, as well as products and services aimed at seniors.

What are the benefits to publishers to running pay-per-call campaigns?

What are the most successful or proven media channels in which to run a pay-per-call campaign?

In the case of PC and tech support it’s often the consumer’s computer that has complications. The best place to reach this consumer in need of help is in the spot they’re encountering issues – on the desktop Web.

Does one media channel seem to yield better calls/customers than the other?

In short, the media channel that is going to work best for a marketer running a pay-per-call campaign is going to be the channel that they know and have the most experience in.

Advertisers must keep a close eye on where the consumer calls in from whenever they run pay-per-call campaigns. They need to make sure that the ad creative and copy a publisher runs is approved and is focused on enticing the ideal consumer.

How do you see pay-per-call evolving over the next year?

As the percentage of time consumers spend on their mobile devices increase, we expect mobile pay-per-call ad spend to increase as well. It’s the best way to capture a customer on the mobile Web.

We are expecting to see more pay-per-call ad units developed by ad networks and publishers. Publishers and networks alike are both struggling to make mobile ad placements profitable. New pay-per-call ad units that can get a consumer to dial in based on their interest and intent, rather that fat fingers, will command a much higher CPM.

Have you had experience with pay per call, how did it work for your business?

Featured Image Credit: Wikipedia

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